The subject of the invention is to provide a medical equipment, in the lower expansion in the radial expansion shrink parts cut parts fall off and the expansion part of the expansion and the contraction of action is not easy to be cut parts hinder. In medical equipment, the front end of the expanding part and the front part of the cut in part are fastened to the front end piece, and the back end of the expanding part and the back end of the core wire are fastened to the ring. The core wire inserted into the hollow part of the cut part from the back end direction can move along the length of the hollow part along with the expansion and contraction of the expanding part. By inserting the core wire into the hollow part, the cutting part does not fall out of the expansion part with the expansion and contraction of the expansion part, and can move to the optimum position, and the result can prevent the radial expansion of the expanding part from being blocked by the cut in part. In addition, the core wire can be cut off from the hollow part of the cutting part, so the load of the cutting part caused by the narrow part of the hanging hook can be reduced, and the possibility of the falling off of the cut in part can also be reduced.
【技术实现步骤摘要】
医疗用设备
本专利技术涉及具备相对于在血管、消化器官内所形成的狭窄部而沿长度方向加以切入的切入部件的医疗用设备。
技术介绍
以往,公知有利用气囊导管等医疗用设备对在血管、消化器官内所形成的狭窄部进行扩张的治疗方法。这种医疗用设备一般具备能够在径向上扩张以及收缩的扩缩部件(例如,气囊、网格部件等),通过使该扩缩部件在径向上扩张来对狭窄部进行扩张。但是,在狭窄部的钙化恶化了的情况下,仅利用扩缩部件来对狭窄部进行扩张变得困难。因此,公知有如下医疗用设备(切入设备):针对钙化了的狭窄部,在沿长度方向配置的切入部件的内部插入气囊导管,通过使气囊导管的气囊扩张,从而使切入部件在径向上扩张(例如,参照下述的专利文献1)。在专利文献1的医疗用设备(切入设备)中,沿长度方向配置的切入部件(切割元件)直接紧固于构成扩缩部件(扩张骨架)的线材的外周。通过使该扩缩部件(扩张骨架)在径向上扩张,从而能够针对狭窄部沿长度方向加以切入。一般地,扩缩部件(扩张骨架)伴随在径向上扩张而在长度方向上收缩(换言之,伴随扩缩部件的扩张,扩缩部件的长度变短)。在上述的医疗用设备(切入设备)中,由于切入部件 ...
【技术保护点】
一种医疗用设备,其特征在于,具备:能够在径向上扩张及收缩的扩缩部件;配置在上述扩缩部件的外周且具有朝向后端方向敞开的中空部的切入部件;从后端方向插入到上述切入部件的上述中空部的芯丝;紧固于上述扩缩部件的前端和上述切入部件的前端的前端片;以及紧固于上述扩缩部件的后端和上述芯丝的后端的环,上述芯丝伴随上述扩缩部件的扩缩而能够在上述中空部内沿长度方向移动。
【技术特征摘要】
2016.05.09 JP 2016-0941431.一种医疗用设备,其特征在于,具备:能够在径向上扩张及收缩的扩缩部件;配置在上述扩缩部件的外周且具有朝向后端方向敞开的中空部的切入部件;从后端方向插入到上述切入部件的上述中空部的芯丝;紧固于上述扩缩部件的前端和上述切入部件的前端的前端片;以及紧固于上述扩缩部件的后端和上述芯丝的后端的环,上述芯丝伴随上述扩缩部件的扩缩而能够在上述中空部内沿长度方向移动。2.一种医疗用设备,其特征在于,具备:能够...
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